Annotation	pos	Low Freq (Hz)	High Freq (Hz)	Begin Time (s)	End Time (s)	duration	filename
C	18.781248	121.87824999999992	907.2927499999998	18.599998000000003	18.962498	0.3624999999999971	20250415_052835UTC_V00OS11.WAV
E	45.325	148.95725000000033	907.2927500000004	45.075	45.575	0.5	20250415_052835UTC_V00OS11.WAV
D	30.043752	135.41449999999963	907.2894999999996	29.875002	30.212502	0.3374999999999986	20250415_052835UTC_V00OS11.WAV
D	51.293752	257.28949999999963	988.5394999999996	51.100002	51.487502	0.3875000000000028	20250415_052835UTC_V00OS11.WAV